000			00460nam a2200157Ia 4500
008			220407s9999 xx 000 0 und d
020			_a9718613536
040			_cATVERC
050			_aTK 6162 .B54 1991
245		0	_aUnderstanding telephone electronics
260			_aKalookan City _bPhilippine Graphic Arts, Inc. _cc1991
300			_a367 p. : ill. ; 22 cm. _c22 cm
500			_aIncludes glossary and index.
650			_aTelecommunication
999			_c18525 _d18525